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It's right for you if...

You’re looking for a super capable long-travel e-MTB that’s built to conquer techy runs and big drops just as cleanly as analogue trail bikes. You want the light weight and responsive ride of an OCLV Mountain Carbon frame.

The tech you get

A light and durable OCLV Mountain Carbon main frame with carbon stays that fully encases a 625 Wh battery for sleek looks and protection on the trail, a 160 mm RockShox Yari RC fork, 150 mm of rear travel with a RockShox Deluxe RT3 shock, a powerful new Bosch Performance Line CX 250 W motor that assists up to 25 km/h and a Purion controller. A 1x12 SRAM NX Eagle drivetrain, Bontrager Line dropper post, Shimano 4-piston brakes and Bontrager Line Comp 30 29er wheels.

The final word

Rail 9.7 hits the sweet spot of carbon performance and amazing value. It’s spec'd with quality trail-specific parts and a powerful Bosch drive system so you can send it through the rough stuff and motor right back up for another run.

See it in action

favorite_borderWhy you'll love it

  1. The new, better-than-ever Bosch motor is smaller, lighter and more efficient. It feels more natural while you’re pedalling, and has less drag when you’re not
  2. Rail shreds just as hard as its non-electric brethren, plus it powers you right back up the mountain – no shuttle or lift necessary
  3. Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy remove the battery without tools and lets you mount a water bottle cage
  4. It's equipped with an external charging port for easy charging on or off the bike
  5. Made with the same exclusive frame tech as Remedy and Slash, like Mino Link adjustable geometry, a Straight Shot down tube for extra stiffness and Active Braking Pivot (ABP)


Features

New Bosch Performance Line CX

New Bosch Performance Line CX

The all-new Bosch Performance Line CX motor is lighter, smaller and quieter than previous versions, for cleaner integration and more nimble handling. It’s also more efficient so you can go further on a single battery charge. Use the intelligent eMTB mode to automatically adjust the amount of assist to match the terrain. It’s a set-and-forget mode that delivers just the right amount of power so you can focus on enjoying the ride.

Removable Integrated Battery

RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security or just easier charging.

Watch video

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Learn more

What is the range?

To see how far you can ride your electric mountain bike on a single charge, check out Bosch’s range calculator. We’ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.

Calculate your range

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame OCLV Mountain Carbon main frame, Removable Integrated Battery (RIB), tapered head tube, Knock Block, Control Freak internal routing, magnesium rocker link, Motor Armour, Mino Link, ABP, Boost148, 12 mm thru axle, 150 mm travel
Fork RockShox Yari RC, DebonAir spring, Motion Control RC damper, e-MTB optimised, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 160 mm travel
Shock RockShox Deluxe Select+, 230x57.5 mm
Max compatible fork travel 170mm
Wheels
Wheel front Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle
Hub front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
Skewer rear Bontrager Switch thru axle
Tyre Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.60"
Tyre part Bontrager TLR valve, 50 mm
Rim strip Bontrager TLR
Max tyre size 29x2.60"
Drivetrain
Shifter SRAM NX Eagle single-click, 12-speed
Rear derailleur SRAM NX Eagle
Crank SRAM X1 1000, 36T, 165 mm length
Cassette SRAM PG-1230 Eagle, 11-50, 12-speed
Chain SRAM NX Eagle, 12-speed
Pedal VP-536 nylon platform
Max. chainring size 34T
Components
Saddle Bontrager Arvada, steel rails, 138 mm width
Seatpost Bontrager Line Dropper, 150mm travel, internal routing, 31.6 mm, 440mm length
Handlebar Bontrager Comp, alloy, 31.8 mm, 15 mm rise, 780 mm width
Grips Bontrager XR Trail Elite, alloy lock-on
Stem Bontrager Rhythm Comp, 31.8mm, Knock Block, 0-degree, 60 mm length
*Brake Size: L
Shimano hydraulic disc, MT501 lever, MT520 4-piston calliper
Size: L
Shimano MT520 4-piston hydraulic disc
Brake rotor Shimano RT76, 203 mm, 6-bolt
Accessories
Battery Bosch PowerTube 625
Charger Bosch standard 4A (220-240 V) charger
Controller Bosch Purion
Motor Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand
Weight
Weight M - 21.83 kg / 48.13 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

Frame size number Frame size letter Geometry position Wheel size A — Seat tube Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack Stem length
15.5 S High 29" 41.0 75.0° 10.5 64.9° 58.7 34.4 2.9 44.7 4.3 12.7 119.5 75.8 42.5 62.3 4.0
15.5 S Low 29" 41.0 75.0° 10.5 64.5° 58.8 33.9 3.5 44.8 4.3 13.1 119.6 75.3 42.0 62.6 4.0
17.5 M High 29" 42.0 75.0° 10.5 64.9° 61.1 34.4 2.9 44.7 4.3 12.7 122.0 77.0 45.0 62.2 5.0
17.5 M Low 29" 42.0 75.0° 10.5 64.5° 61.3 33.9 3.5 44.8 4.3 13.1 122.1 76.5 44.5 62.6 5.0
19.5 L High 29" 45.0 75.0° 11.0 64.9° 63.3 34.4 2.9 44.7 4.3 12.7 124.3 76.7 47.0 62.7 5.0
19.5 L Low 29" 45.0 75.0° 11.0 64.5° 63.4 33.9 3.5 44.8 4.3 13.1 124.3 76.2 46.5 63.0 5.0
21.5 XL High 29" 50.0 75.0° 12.0 64.9° 66.5 34.4 2.9 44.7 4.3 12.7 127.7 76.5 49.9 63.6 5.0
21.5 XL Low 29" 50.0 75.0° 12.0 64.5° 66.6 33.9 3.5 44.8 4.3 13.1 127.7 76.0 49.5 63.9 5.0

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